text: As for technical competence, the following topics are especially important:
  * sampling
  * traceability of measurement result
  * validation of measurement procedure
  * measurement uncertainty
  * participation in interlaboratory comparisons
  * internal quality control.
  As it is important to have globally harmonised approach to the above-mentioned topics, various training and teaching material have been developed at the European level, as to support implementation e.g. by EURACHEM and by TrainMiC.